PRE240
Four zone - 10 Channel stereo preamplifier
Highlights
- 4 Balanced stereo line outputs
- 2 unbalanced stereo line inputs
- 8 x Microphone input
- 4 x priority mute contact
- Front 3.5mm Jack (mixed with Ch 2)
- Integrated Bluetooth receiver
Applications
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- Education
The PRE240 series preamplifiers are solutions for applications where a large number (up to 8) of microphones (or other mono balanced audio inputs) need to be mixed to four output zones. The multifunctional stereo design with a total of 10 inputs allows connection for any type of audio source such as microphones, Bluetooth devices or line level audio sources.
Inputs one up to eight are balanced, allowing the connection of microphones or line level audio sources with the ability of enabling 48V phantom power to each input. They feature 3-band tone control and talk-over for priority announcements. The other two (9 and 10) inputs are unbalanced stereo line inputs allowing connection of any type of line level audio source.
An integrated Bluetooth receiver and a front panel 3.5mm jack offers convenient wired or wireless connection possibilities for mobile and portable devices including laptops, smartphones and tablets. The front panel includes a master volume control with 2-band tone control and LED VU bar for each output.
Each input section is accommodated with input mixing dials and output selection switches. A priority mute for each zone output suppresses all (non-priority) music sources in case of contact closure, allowing linking autonomous alarm systems.
| System specifications | ||||
|---|---|---|---|---|
| Inputs | null | |||
| Front 3.5mm Jack (mixed with Ch 2) | ||||
| Priority mute contact | ||||
| Microphone | Signal / Noise | 80 dB | ||
| Line | Signal / Noise | 100 dB | ||
| Balanced Microphone | THD+N (@ 1 kHz) | < 0.05 dB | ||
| Line | THD+N (@ 1 kHz) | < 0.01 dB | ||
| Frequency | Response (± 3 dB) | 20 Hz - 20 kHz | ||
| Power | Supply | 100 ~ 240 V AC / 50 ~ 60 Hz | ||
| Inputs | Balanced Microphone | Type | 8 x Balanced Microphone | |
| Unbalanced Stereo | Type | 2 x Stereo Unbalanced Line | ||
| Microphone | Phantom Power | 48 V DC | ||
| Product Features | ||||
|---|---|---|---|---|
| Dimensions | 18.98 x 3.46 x 13.19 " (W x H x D) | |||
| Unit height | 2 HE | |||
How to use ARJ12P with PRE series
For this application, we used a PRE series stereo preamplifier with a WP2xx series universal wall panel and connected them using an ARJ12P junction box. By connecting any WP2xx universal wall panel, we extended the functionality of the PRE series with a peripheral input with mixing functionality, Bluetooth functionality, or both. As a result, a simple PRE series application gains local input flexibility with such an elegant solution, with the addition of ARJ12p and a 24V power supply (PSD241 in this example).
| Product | Unit of measure | Quantity | |
|---|---|---|---|
| AU514034010 - PCBA CONTROL/FRONT PRE240 V1.0 | PCS | 1 | |
| AU514034020 - PCBA OUTPUT PRE240 V1.0 | PCS | 1 | |
| AU514034030 - PCBA MUTE/SELECT/OUTPUT PRE240 V1.0 | PCS | 1 | |
| AU514032040 - PCBA POWER SUPPLY PRE220/240 V1.0 | PCS | 1 | |
| AU514032051 - PCBA INPUT/EQ PRE220/240 V1.1 C-Taper | PCS | 1 | |
| AU891925643 - AUDAC BOX 19" DEVICES 2HE 557x416x185 MM V2.0 | PCS | 1 |
Information sheet English
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| Code | Quantity | Length | Width | Height | Cubage | Weight |
|---|---|---|---|---|---|---|
| PRODUCT | 1 | 0,30 m | 0,48 m | 0,09 m | 0,01296 m³ | 4,59 kg |
| PCS | 1 | 0,42 m | 0,56 m | 0,19 m | 0,04469 m³ | 5,60 kg |
| INNER | 1 | - | - | - | - | - |
| MASTER | 1 | - | - | - | - | - |
| PALLET | 23 | - | - | - | - | - |
